Brush-making machine



June 12, 1923. 1,458,783

A. .H. SHIPLEY BRUSH MAKING MACHINE Filed Sebt. 10. 19 20 Patented June 12, 1923.

v v I "1,458,783

7 ment l-a monia SHI PLEY, o fmi ns m iE NG ANn BRUSH-MAKING MACHINE.

' .Aplilication-filed September 10,-1e20.. sena1 1w;409,472.

ojcaZl whoazitmag/ comer a) 1 a, Be it known that I, ARTHUR HAMMOND :SHIPLEY, subject of the King of Great Britain, residing at Leicester,-in the county of Leicester, England, have invented certain new vand useful Improvements in or Relatingf to Brush-Making ,Machines (for which I have filed. application in England May 21, 1917, Patent No. 115,887), of which the following is a vspecification, reference being had therein to the accompanying draw- 111. 1

This invention relates to brush-making machines and concerns more especially,-

though not exclusively, machines for :filling brush heads, backs or, stocks. .1 a

In certain kinds of machines for inserting tufts vorbunches of bristles orthe likeinto the holes previously drilled in the stock or head of a brush, ail-arrangement of mechanism is employed for holding the brush head or stock up to the inserting tool or member,

' said mechanism including as one of itsfeatures a rest or support which comes into position behind the stock whenthe latter .'is placed against the .tool and held by the operator., This res't is, so arranged as to be capable of adjustment by a hand-device relatively tothe inserting tool ormemberffor the purposeof adapting the machineto deal with brush heads 01' stocks ofejdifferent thicknesses, and; it, also has combined with it automaticallyacting locking means which come into operation to prevent retirement of thegrestafter it has been moved towards the inserting tool'by certain mechanical devices providedforthekpurpose. The said locking means serveto hold the rest in'the Y operative'positicn to support the stock during the-inserting operationand they are so arranged as'zto automaticallylock the rest in whatever position 'it may have been moved to. tomust be made prior toythe rest. being movedmto and locked in: the operative position and it frequently happens thati'it is desiriable toefifectfifurther adjustment of the rest after: it hasreached the said operative position, ,butjas this-cannot be eifected the complete cycle of the machinefs operation mustbe accomplished to enable the locking means torelease the rest. -It also sometimes happens that it isdesirable to'ureleaseithe as for. instance when the rectly positioned. Thepresent invention vtherefore 'hasfor'its effected byand: at the any time after said tirely.

The adjustment above referred amen wanna. Ina rRovisIoN's or THE ACT or MARCH 3, 1921, 41 STA T.L., 1313,)i Y

rest after it has been automatically locked stock is not corobject the provision of means in'a. machine of the kmdmentionedwhereby the release of the rest or, holding mechanism may be rest has becomeautomatically locked and before ,it is automatically' unlocked, The said means constitutmg this invention may be of such a character that, iffd'esired, they may be used .to put the automatic locking means out of'action en- In a brushifilling. machine of known constructionythe brush head, back orstock is supported, while held by the operator, against the thrust of-the filling or inserting tool, by ,a rest which is slidable'relatively' towarclsand from-said tool and hasfcom- 'bined with it a toothed-rack.

Arranged to engage the rackiare number of spring actuated pawls controlled by a lever'or similar member which in -turn" is operated-by a part ofthe rest ac'tuatingmechanism, in

such" a manner that it allows sthe pawls-to will ofathe operator at engage the rack at-the right time to'lock the rest-and alsodisengages the pawls from the rack when the restis to be retracted on the completion of the filling operation, i. e. after each bunch or tuft has been insertedinto a hole.

The object ofthis-invention is achieved in such: machine by providing in association with-the pawl controlling leveror member'a device operable by hand-or foot'to move saidlever or member and cause it to efiectdisengagement of the pawls from the rack.

Conveniently'the controlling leveror similar member has combinedwith it a cam-lever operable by hand and arranged so that when turned in. onejdirection it raises thecontrol ling lever andthereby disengages the pawls from the rack, and when-turned in the opposite direction it releases said controlling lever so that the latter is able tooperate for its intended purpose. I v I 'To enable the invention tobe clearly i111- derstood a practical embodiment ofthe same is shown by-wayofexample in the'accompanying "drawing-applied to a brush-filling machine having an arrangement of mechanism of the kind hereinbetore referred to for supporting the stock.

In the drawing I Figure 1 is a side elevation of the part of the machine concerned by the present invention. I

Figure 2 is a sectional elevation of the controlling lever of the machine equipped with operating means according to the present invention.-

Figure 3 is a plan of the said controlling lever.

Figure 1 is drawn to a smaller scale than Figures 2 and 3 and in the several figures like parts are designated by the same reference characters.

In the portion of the brush-filling machine shown in Figure 1 of the drawing, 1 is the guiding nozzle surrounding the in sert-ing tool, 2 is the rest which comes into position behind the brush stock 3 whenthe latter is placed in position against the nozzle. The rest 2 is slidable longitudinally through bearings l and is fitted with an ad justing screw 5 by which it is connected to a spring part (5 of an actuating lever 7. The lever oscillates upon a pin 8, being moved by the combined action of an eccentric 0t cam 9 and a spring 10. The spring part 6 of the lever 7 yieldingly moves the rest to and fro and the rest may be adjusted relatively to the nozzle 1 so that its operative position may be varied as requiredto suit brush stocks olidifierent thicknesses.

'lhc sliding rest 2 is provided-thereon at its rear end with rack teeth 11 (Figure 2) with which a series of pawls 12 (Figures 1 and 2) engage to lock the rest against retiring movement. The p-awls are pivotally mounted at 13' on asupporting lever l l (Figure 1) resiliently controlled by the rod 15 and spring 16 the pawls being pressed into engagement with the rack teeth by springs 17.

lVhen by movement of the lever 7 in the direction indicated by the a.rrow,'the rest 2 is moved and comes into contact with the back of the stock 3 (the "said stock being held in engagement with the nozzle by the operator), the spring part 6 of the lever becomes more or less bowed according to the degree of pressure determined by the prior adjustment or setting of the rest in relation to the work, and upon the rest reaching its posit-ion the pawls 12 engage the rack teeth 11 and automatically lock the rest in whatever position it is moved to, said locking preventing retiring movement but not forward movement of the rest. Upon completion of the inserting operation the lever 7 is moved by the aforesaid means in the opposite direction to that previously described and during this movement an extension or finger 18 on the lever slides under a lever-cam 19 and upon passing from the li 20 of same to the cam part 21 raises this lever-cam on its pivot 22 which movement by means of a screw 23 raises the controlling lever 24. This latter" lever is pivotally mounted at 25 and its screw 23 rests upon a lug 26 on the side of the lever-cam 19. The free end 27 of the controlling lever 24 is situated underneath lips 28 projecting from the pawls 12 (Figures 1 and 2) so that when it'is raised as aforesaid by the lever-cam 19 it will lift the pawls from engagement with the rack teeth 11 as represented by the dotted lines in Figure 2. The pawls 12 having been disengaged from the rack teeth the rest 2 is free to be moved 'rearwards by the 'continued action of the lever 7 thus releasing the work and allowing the operator to change its position and bring another hole into engagement with the nozzle preparatory to inserting the next bunch of bristles.

During the next advance movement of the rest 2 to engage with the newly positioned stock, the extension or finger 18 of the lever 7 moves forward under the cam part 21 of the lever-cam 19 and thus holds the pawls raised'until upon or just prior to the rest' reaching the operative position, when said finger passes "from the cam part 21 to the lip 20, and in doing so, allows the lever-cam 19 to fall, this in turn allowing the cont-1'01- ling lever 2 1 to fall so that the pawls 12 are i i pressed down by their springs 17 to engage the rack teeth 11 and lock the rest.

Thus it will be seen that the engagement of the pawls 12 with the rack teeth and also their disengagement from said teeth to respectively lock and unlock the rest is effected automatically'by means of the extension or finger 18. I

Now from the foregoing description it will be seen that after the rest has been advanced to and become locked in its operative position, no'adjustment of this member in a rearward direction can be effected by the device 5, neithercan the stock be removed. To

perform either of these operations the rest must be unlocked and with the arrangement described it is usually necessary to allow the machine to complete its cycle so that the finger 18 efi'ects the unlocking to free the part 2. In other words, there is no provision in the arrangement referred to for unlocking the rest at will when it occupies its operative position.

As previously stated herein, it is'sometimes desirable to further adjust the rest 2 For instance, if the op iao is distinctly advantageous to be able to release the rest so that the machine can complete'its cycle without causing damage to itself or the work.

In the form of mechanism described, this is made possible according to the present invention by combining With the controlling lever 24 a cam-lever 29 (Figures 1, 2 and 3) situated in a slot 30 and mounted upon a pin 31 in said lever 24.. lVhen this camlever occupies the position shown in full lines,- the controlling lever 24 is free to be inverse movement of the cam-lever 29 (fromdotted to full line position, Figure 2) allows the controlling lever to fall and lower the pawls into action. Thus at will by moving, the cam-lever 29 the operator can, such for example as for the purposes previously mentioned, release and lock the rest 2 while the latter occupies its operative position.

In the form shown in Figure 2, the camlever device 29 is arranged to move to positions upon opposite sides of the vertical or dead centre, and is restricted by contact with the end 34 of the slot thus being retained in the respective positions without the as sistance of any subsidiary means the downward pressure of the lever 24 imparted by gravity and the springs 17 acting thereon by the lips 28, tending to prevent accidental,

position.

movement of the device from either What I claim then is .1. In a brush-making machine, in combination, a slidable rest, means to automatically lock said rest vin the operative position, a lever to control-said locking means,

, mechanical means to operate said lever to. effect locking and unlocking said rest, and a manually operable cam-lever pivotally mounted in theicontrolling lever; adapted upon being turned in one direction to move j the controlling lever so that it renders the locking means inoperative and, upon being turned in the opposite direction, to move means operative. v

' 2. In a brush-making machine, in com bination, a slidable rest, means to automatically lock said rest in an operative posisaid lever so that it makes said {locking mechanical means to operate said lever to effect locking and unlocking'of the rest, and i a manually operable cam-lever pivotally mounted in the controlling lever'andsitu- .tion a lever to control saidlocking means,

ated within a slot therein, so as to be movable in one direction to raise said controlling lever and in the other direction to lower 2 same for the purpose of respectively unlocking andlocking the rest, said cam lever be ing moved to respective positions on opposite sides of the dead centre andbeing limited in movement by the ends of the slot in which it is situate In testimony whereof I-ailix my signature in presence of'two Witnesses.

ARTHUR HAMMOND SHIPLEY. Witnesses: l

R. W. C. TAYLOR, GEORGE LESTER. 

